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This sum of the sum of 7 consecutive primes (131 + 137 + 139 + 149 + 151 + 157 + 163) is also the sum of the squares of the first 8 primes 2^2 + 3^2 + 5^2 + 7^2 + 11^2 + 13^2 + 17^2 + 19^2 and the smallest number which has 9 embedded primes (2, 7, 17, 71, 107, 271, 701, 1027, 2017). It is the closest semiprime to 2^10. Hence it has properties associated with 7=0, 8=7+1, 9=7+2, 10=1+0+2+7. [Post]

 

  Submitted: 2009-04-03 00:17:31;   Last Modified: 2009-04-03 06:46:19.



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